👉 Centennial is a term used in science and history to refer to the 100th anniversary of a specific event or achievement. It can also be used metaphorically, referring to an event that has occurred for ten years, ten decades, etc. For example: - In the 20th century, there were many centennials, such as World War II and the end of World War I. - Centennial celebrations are held annually in various countries around the world to mark significant
